starlingx/app-node-interface-metrics-exporter

StarlingX Node Interface Metrics Exporter App

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README.md

app-node-interface-metrics-exporter

app-node-interface-metrics-exporter flux cd app

Top Level Directory Structure

├── app-node-interface-metrics-exporter    # Root Folder
│   ├── debian_build_layer.cfg
│   ├── debian_iso_image.inc
│   ├── debian_pkg_dirs
│   ├── metrics-exporter-api              # Go code  for  api server which will expose  Metrics for  NIC .
│   ├── python3-k8sapp-node-interface-metrics-exporter    # lifecycle managemnt code  to support  flux apps
│   ├── README.md
│   ├── requirements.txt
│   ├── stx-node-interface-metrics-exporter      # helm Package manager  for the app
│   ├── test-requirements.txt
│   └── tox.ini

all command related to go code should run from app-node-interface-metrics-exporter/metrics-exporter-api/docker/metrics-exporter-api

About metrics-exporter-api

It is Simple Http Server which reads network interface (PCI devices) and exposes following API's

http://{hostname}:{port}/metrics -- all node metrics in OpenMetrics format
http://{hostname}:{port}/metrics/device/{DeviceName} -- specified interface metrics identified by device name in OpenMetrics format
http://{hostname}:{port}/metrics/pci-addr/{PciAddr} -- specified interface metrics identified by PCI address in OpenMetrics format
http://{hostname}:{port}/json/metrics -- all node metrics in JSON format
http://{hostname}:{port}/json/metrics/device/{DeviceName} -- specified interface metrics identified by device name in JSON format
http://{hostname}:{port}/json/metrics/pci-addr/{PciAddr} -- specified interface metrics identified by PCI address in JSON format

Makefile Support

$ make
help:                Show this help.
install_dep:         install go dependency
run:                 run app on host machine
test:                run go unit test
testcov:             run go coverage test
vet:                 run go vet
lint:                run go lint
build_linux:         Build application
build_image:         Build docker image

$ make run will start go dev http server

Run time Options / params for the metrics-exporter-app usage

Options	Help
`-log.file`	Log file name (default "node_metrics_api.log")
`-log.level`	log level. (default "info"). Valid options trace, debug, info, warning, error, fatal and panic
`-log.file`	Log file name (default "node_metrics_api.log")
`-web.listen-address`	Port to listen on for web interface. (default ":9110")
`-path.sys`	mounted path for host /sys inside container (default "/sys")

Local / Devlopment Set UP for metrics-exporter-api

pre requisite go 1.21.0

Container image reference for helm

Dockerfile

Build Reference

References

StarlingX

How to add a FluxCD App to Starlingx

OpenMetrics